Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/224#discussion_r10928654
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringOperations.scala
---
@@ -20,10 +20,114 @@ package catalyst
package expressions
import org.apache.spark.sql.catalyst.types.BooleanType
+import java.util.regex.Pattern
-case class Like(left: Expression, right: Expression) extends
BinaryExpression {
- def dataType = BooleanType
- def nullable = left.nullable // Right cannot be null.
+import catalyst.types.StringType
--- End diff --
As specified in [the Spark Code Style
Guide](https://cwiki.apache.org/confluence/display/SPARK/Spark+Code+Style+Guide#SparkCodeStyleGuide-Imports),
please use full qualified package imports here, and reorder all the imports
accordingly. Spark SQL used to use relative package imports, but has already
been fixed in an earlier PR :)
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